It is not normal to have menstrual bleeding lasting more than 6-7 days. Factors such as missed contraceptive pills can contribute to this issue. It is important to seek medical advice if you are experiencing prolonged bleeding, as it could be a sign of an underlying health concern. It is recommended to monitor your menstrual cycle and consider alternative contraceptive methods to prevent missed doses. Additionally, managing stress and anxiety can help regulate your menstrual cycle. If symptoms persist, it is best to consult a healthcare professional for further evaluation and guidance.